Efficient Solution of Compressible Internal Flows

This paper provides an efficient and accurate numerical method for computing internal flows in two dimensions. The method has been designed to deal with subsonic-to-supersonic flows without shocks, but can deal with entirely subsonic and transonic flows. The perturbative lambda formulation equations are considered and solved by block-line-relaxation methods. The validity of the proposed technique is demonstrated for a well documented nozzle flow problem for both subsonic and subsonic-to-supersonic flow conditions.